JAY R THIAGARAJAH (MBBS, PH.D) – Pediatric Gastroenterology Physician, NPI 1043539794

JAY R THIAGARAJAH (MBBS, PH.D) is a healthcare provider. based in Boston, Massachusetts. specializing in GASTROENTEROLOGY. They hold the professional credentials MBBS, PH.D. They hold a License No. 253464 (MA). The NPI Number for JAY R THIAGARAJAH (MBBS, PH.D) is 1043539794

Main info

Male
17 Years Of Experience
Accepts Medicare Assignment
Name
JAY R THIAGARAJAH (MBBS, PH.D)
NPI
1043539794
Phone
(617) 355-6058
Address
300 LONGWOOD AVE
Enumeration Date
20 May 2010
Last Update Date
22 February 2017

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6173556000
Graduation Year
2009 (17 years ago)
PAC ID
5890954390
Group Practice PAC ID
3476541830
Professional Enrollment ID
I20170331001694
Address ID
MA021155724BO300XXAVEX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience51
Completeness75
Years active:16State licenses:1Digital endpointsOther names

828 GASTROENTEROLOGY in MA

Provider Addresses for JAY R THIAGARAJAH (MBBS, PH.D)

  • 300 LONGWOOD AVE

    BOSTON, MA 021155724

    Phone: (617) 355-6058

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-03-31

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20170331001694IGastroenterologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02115)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476541830View full group profile
NameSpecialtyState
-MA
Nurse PractitionerMA
-MA
-MA
Critical Care (Intensivists), Pediatric MedicineMA
Allergy/Immunology, Pediatric MedicineMA
Hematology/Oncology, Pediatric MedicineMA
-MA
-MA
Pediatric Medicine, Infectious DiseaseMA

Reviews

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Frequently asked questions

Can I verify JAY R THIAGARAJAH (MBBS, PH.D) with an NPI only?
You can start verification with NPI 1043539794 for JAY R THIAGARAJAH (MBBS, PH.D), then check state licensing separately.
Does the file indicate JAY R THIAGARAJAH (MBBS, PH.D) is practicing under active NPI?
Directory data currently reports JAY R THIAGARAJAH (MBBS, PH.D) as active.
What healthcare role does JAY R THIAGARAJAH (MBBS, PH.D) hold?
Scheduling teams often label JAY R THIAGARAJAH (MBBS, PH.D) under Pediatric Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
What area does JAY R THIAGARAJAH (MBBS, PH.D) serve?
JAY R THIAGARAJAH (MBBS, PH.D)'s listing highlights Boston, Massachusetts; more addresses can appear in NPPES.
Is the information about JAY R THIAGARAJAH (MBBS, PH.D) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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